1

Metatarsal pain:
Pain in the ball of your foot is most often mechanical, meaning the way your foot hits the ground. Your third metatarsal, as you have described it, may become inflamed due to pronation. The result can be a painful joint, stress fracture, bursitis, tendonitis, and possibly even a neuroma (pinched nerve). You should see a podiatrist for treatment.
...Read more

Your doctor may also suggest a safe exercise plan. Walking is usually the easiest type of exercise, but swimming or other low-impact exercises can work just as well. Exercise is an important way to keep blood sugar in control, and physical activity in pregnancy has been found to decrease the risk of developing gestational diabetes.
...Read more

3

Inflamation:
I am not an expert and perhaps a physician with more expertise than i can give a better answer... But from personal experience it sounds like you may have inflammation in the bottom of your foot and you may need to wear an orthotic or other treatment to help you. See a physician experienced in sports or foot injuries for an evaluation and treatment.
...Read more

4

Consult your doctor :
It could possibly be from a lumbar spinal condition -- like a "pinched nerve"-- your doctor will have to examine you to rule this out. A few other things could cause your complaint.
...Read more

5

Achilles tendon atta:
This is where the Achilles tendon attaches. This needs to be evaluated. It is Achilles tendonitis. We can find this as part of a systemic inflammatory spondylarthropathy or it can be mechanical. We call this an enthesis and the inflammation entesitis. Your physician can help you identify the cause. You may need to see a rheumatologist
...Read more

6

Gastrocnemius:
Part of your calf muscle attaches above the knee. Forcing the heel backward will recruit this muscle and can cause pain if it is tight or inflamed. A gentle, progressive stretching program should help.
...Read more

11

Many possibilities:
Your pain could due to trauma (fracture, sprain, arthritis, inflammation), infection, metabolic conditions (gout), poor circulation, musculoskeletal or biomechanical abnormality and different neurologic conditions (neuropathy). A thorough history and physical exam and possibly some laboratory and radiology exams are needed to determine the exact cause. The treatment varies depending on the cause.
...Read more

13

Could be numerous:
Things, tendonitis, neuritis, stress reaction of bone. If you are a serious jogger it would behoove you to see a doctor (podiatrist or orthopedist) to solve this issue quickly as the problems will potentially escalate with physical exertion.
...Read more

15

Compensation:
Due to your knee problem you may have changed your walking pattern to compensate for the knee. This may be putting more pressure on the ball of the foot and creating a metatarsalgia or possible neuroma.
...Read more

17

Achilles tendonits:
Treat it with four things....1) ice massage. Get a dixie cup fill it with water and freeze it. Massage the achilles with the ice 2-3x day with the ice. 2) stretch, stretch and stretch. 3) wear a shoe with a slight heel 4) take an NSAID for a few days if you can tolerate one. It will get better. You do not need an mri.
...Read more

18

Achillis tendonitis:
The pain you are describing involves the achilles tendon and the medial head of the gastrocnemius muscle. Pain can be from inflammation or a tear. I suggest you seek medical attention before a more serious problem occurs.
...Read more

20

Like :
Like with no many questions asked here, there is too little information to give you a proper answer or guide you in the right direction. How long has this pain been present? Was there an injury? Did it start suddenly or slowly? Is there redness, heat, swelling? Have you tried taking anything, and if so, what, and did it help?
So either re-post your question with more detail if you like, or do the obvious, which is visit your friendly podiatrist, where you're more likely to get a much better idea of what's going on down there than you ever possibly could here in avvo-land.
...Read more